This is your best bang for the buck:

$24 with $6 off coupon: https://www.amazon.com/gp/product/B09P19TR38?

I have 10 of these and the listing above is almost half of what I paid. If you can buy more than one, do it while at this price. They are normally $45-50.

$47: https://www.amazon.com/FECiDA-Dimmable-Spectrum-Seeding-Growing/dp/B093BLNT14

$46: https://www.amazon.com/LuminPool-Spectrum-Include-Dimmable-Adjustable/dp/B08FSLC9Z8